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Ph.D. Dissertation Defense: Wei Meng
Monday, December 23, 2013
10:00 a.m.
Room 2328, AV Williams Building
For More Information:
Maria Hoo
301 405 3681
mch@umd.edu

ANNOUNCEMENT: Ph.D. Dissertation Defense
 
Name: Wei Meng
 
Advisory Committee:
Professor Kawthar A. Zaki, Chair/Advisor
Professor Julius Goldhar
Professor Neil Goldsman
Professor Christopher Davis
Professor Amr Baz
 
Date/Time: Monday, December 23, 2013 10:00 AM
 
Location: Room 2328, AV Williams Building
 
Dissertation Title: Synthesis and Design of Wideband Microwave Filters and Components
 
Abstract:
In the development of modern communication systems, various stringent requirements are imposed on the hardware components to support emerging applications. There is broad interest in developing wideband microwave passive components that enable the successful building and integration of wideband communication systems.

The main objective of this dissertation is the development of exact synthesis techniques for wideband microwave filters, based on proposed equivalent circuit models. In conventional narrowband approach, the multiple resonators are arbitrarily coupled by frequency independent couplings, which do not accurately represent very wideband frequency responses. By replacing the frequency independent couplings by the frequency dependent coupling model in equivalent circuit, the synthesis techniques are re-developed by: (i) coupling matrix approach and (ii) cascade synthesis approach.
 
 
Coupling structures in LTCC technology that can provide very wide coupling bandwidth and are suitable for the developed synthesis technique are analyzed. Various wideband microwave filters realized in LTCC technology which utilize the proposed synthesis approaches are demonstrated by design examples. High performance microwave transitions that can be used for integration of the LTCC broadband filters in wideband communication systems are also investigated.
 

This Event is For: Graduate • Faculty

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